# Hausdorff operation

From Encyclopedia of Mathematics

The same as the $\delta$-$\sigma$-operation.

**How to Cite This Entry:**

Hausdorff operation.

*Encyclopedia of Mathematics.*URL: http://www.encyclopediaofmath.org/index.php?title=Hausdorff_operation&oldid=42889

This article was adapted from an original article by A.G. El'kin (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article